Granted Patent
Utility
US 4,385,192 · App. 05/922,097
Process for manufacturing DBCP
Inventors:
Lester A. Friedman, Jr., Chester Callaway
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: Jul 5, 1978
Inventors
Lester A. Friedman, Jr.
Chester Callaway
Assignee (at issue)
AMVAC Chemical Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.